Polymer bulk heterojunction solar cells employing Förster resonance energy transfer

Jing Shun Huang, Tenghooi Goh, Xiaokai Li, Matthew Y. Sfeir, Elizabeth A. Bielinski, Stephanie Tomasulo, Minjoo L. Lee, Nilay Hazari, Andre Taylor

Research output: Contribution to journalArticle

Abstract

There are two crucial tasks for realizing high-efficiency polymer solar cells (PSCs): increasing the range of the spectral absorption of light and efficiently harvesting photogenerated excitons. Here, we describe Förster resonance energy transfer-based heterojunction polymer solar cells that incorporate squaraine dye. The high absorbance of squaraine in the near-infrared region broadens the spectral absorption of the solar cells and assists in developing an ordered nanomorphology for enhanced charge transport. Femtosecond spectroscopic studies reveal highly efficient (up to 96%) excitation energy transfer from poly(3-hexylthiophene) to squaraine occurring on a picosecond timescale. We demonstrate a 38% increase in power conversion efficiency to reach 4.5%, and suggest that this system has improved exciton migration over long distances. This architecture transcends traditional multiblend systems, allowing multiple donor materials with separate spectral responses to work synergistically, thereby enabling an improvement in light absorption and conversion. This opens up a new avenue for the development of high-efficiency polymer solar cells.

Original languageEnglish (US)
Pages (from-to)479-485
Number of pages7
JournalNature Photonics
Volume7
Issue number6
DOIs
StatePublished - Jun 1 2013

Fingerprint

Energy transfer
Heterojunctions
heterojunctions
Solar cells
Polymers
solar cells
energy transfer
Excitons
polymers
Excitation energy
excitons
donor materials
absorption spectra
Light absorption
Conversion efficiency
Charge transfer
Coloring Agents
Dyes
electromagnetic absorption
spectral sensitivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Huang, J. S., Goh, T., Li, X., Sfeir, M. Y., Bielinski, E. A., Tomasulo, S., ... Taylor, A. (2013). Polymer bulk heterojunction solar cells employing Förster resonance energy transfer. Nature Photonics, 7(6), 479-485. https://doi.org/10.1038/nphoton.2013.82

Polymer bulk heterojunction solar cells employing Förster resonance energy transfer. / Huang, Jing Shun; Goh, Tenghooi; Li, Xiaokai; Sfeir, Matthew Y.; Bielinski, Elizabeth A.; Tomasulo, Stephanie; Lee, Minjoo L.; Hazari, Nilay; Taylor, Andre.

In: Nature Photonics, Vol. 7, No. 6, 01.06.2013, p. 479-485.

Research output: Contribution to journalArticle

Huang, JS, Goh, T, Li, X, Sfeir, MY, Bielinski, EA, Tomasulo, S, Lee, ML, Hazari, N & Taylor, A 2013, 'Polymer bulk heterojunction solar cells employing Förster resonance energy transfer', Nature Photonics, vol. 7, no. 6, pp. 479-485. https://doi.org/10.1038/nphoton.2013.82
Huang JS, Goh T, Li X, Sfeir MY, Bielinski EA, Tomasulo S et al. Polymer bulk heterojunction solar cells employing Förster resonance energy transfer. Nature Photonics. 2013 Jun 1;7(6):479-485. https://doi.org/10.1038/nphoton.2013.82
Huang, Jing Shun ; Goh, Tenghooi ; Li, Xiaokai ; Sfeir, Matthew Y. ; Bielinski, Elizabeth A. ; Tomasulo, Stephanie ; Lee, Minjoo L. ; Hazari, Nilay ; Taylor, Andre. / Polymer bulk heterojunction solar cells employing Förster resonance energy transfer. In: Nature Photonics. 2013 ; Vol. 7, No. 6. pp. 479-485.
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